Tested to a sensitivity tolerance of 1 dB, the Telefunken TK61-S is a matched pair of small-diaphragm capsules made to fit ELA M 260 or M60 FET microphones. These 15mm diameter condenser capsules feature gold-sputtered membranes and omnidirectional polar patterns. With a flat response from 20 Hz to 5 kHz and a smooth presence peak at 8 kHz, they are well suited for ensembles, orchestras, and room ambience.